Hydroponics is a method of growing plants without soil, by using mineral nutrient solutions in an aqueous transport. There are six separate types of hydroponic systems that can be used, which include the following: Wick System, Water Culture, Ebb and Flow, Drip, N.F.T. (Nutrient Film Technology), Aeroponic systems. There are literally hundreds of variations on these basic types of systems, but all hydroponic methods are a variation (or combination) of these six types.